Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS

From: Jeff Garzik
Date: Sun Sep 30 2007 - 11:43:54 EST

Paolo Ornati wrote:
On Sun, 30 Sep 2007 11:05:17 -0400
Jeff Garzik <jeff@xxxxxxxxxx> wrote:

I have this problem only with XFS, and even with XFS it goes away
mounting with "nobarrier"...
This last is an interesting datapoint.

I wonder if libata has a generic problem with NCQ + FLUSH CACHE.

What happens if you enable the 'fua' module parameter? (libata.fua on kernel command line, if built in)

it isn't supported here:
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

Did you actually try my suggestion?

That message is normal, because libata defaults to FUA==off.


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